Combined grain drier, cooler, and bleacher.



l E. P. ARNOLD. commu GRAIN mam, GOOLERVAND BLEAGHER.

l APPLICATION FILED HAY 20, 1908.

Patented Mar. 16, 1909.

4 smug-slum 1,

Mam,

E- PrmoZZ anotan! E. P. l,ARN`L]).' l COMBINED GRAIN DRIRE., CODLBR, AND BLEAGHEB..

APPLlOATION 'ILED MAY 20, 1908.

Patented Mar. 16, 1909.

4 SHEETS-SHEET 2.

52ml h1 sono E. P. ARNOLD.

COMBINED GRAIN DRIRE, GOOLEB., AND BLEAGEER.

APPLIOATIGN I'ILEB MAY 20, 190.8.

Patented Mar. 16, 1909.

4 SEBEvTS-SHEET 3.

.Fzy t Mul / vwentoz u w 4 T 9 n 1B E ...E 6 am.. ...L n u n w E 5. a ,e H C S w e o oo o e o o 4. o on o m .1v oo oo oo no oo oo oo .a a a e n C, o@ ne a. o u 0 e nu o o o o o o o o o. nu o oo o oo eo o o ee eo o Dum o o o o o o 0o o o o o o oe oo Y eo o ce oo oo oo o oo oo o c w v omfeo on e o l gnuznoz E P 7f- 760 Zeit Wil?" mw UNiTED EDWARD PAXTON ARNOLD, OF CHICAGO, ILLINOIS.

COMBINED GRAIN Damn, COOLER, AND BLEAOHER.

To all whom it may concern:

Be it known that I, EDWARD PAXTON ARNOLD, a citizen of the United States,

residing at Chicago, in the county of Cook and State of Illinois, have invented certain neaT and useful Improvements in a Combined GrainDrier, Cooler, 'and'Bleacherg of which the followingis a s )ecificatiorh This invention re ates to improvements in a combined grain drier, cooler and bleacher, but more especially that class of apparatus wherein external air is employed through the medium of a fan or blower assing througha heating device and forcecl upward into a drying chamber for drying and cooling grain. i y rlfhis invention further relates to the means for holding the grain in abeyance in the upper portion of a-tower when the drying process is in operation: or the grain can be slowly passingdown the tower as it is ldeflected bythe shelves, during the bleaching process:

This invention further relates to the means for dividing the tower into two'kseparate compartments whereby cold and also heated air is acted on simultaneously by a single fan or blower through the medium of suitable pipes for the purpose `i-n view. l

This invention further relates to the pivoted perforated shelves for regulating the V descent ofthe grain at certain times during the process of treating.

This invention also'relates to the means for preparing the bleaching products and p conveying the fumes into the upper chamber or compartment of a tower by hot air from furnace alone, no fan or jet being used.

This inventionv also relates to the means for drawing cold air into the alternate opposing lower portion of a tower, upwardl into a conduit or pipe, thence downwar ly vto a steam coil chamber, through a fan into a hot air pipe or conduit, then again upwardly, into a drying compartment in, a tower.

Thisinvention also relates to the adjustable arrangement of the pivoted shelves which can be o erated simultaneously to run rain fast or s ow or toretain'sarne for any ength of time.

This invention also relates to the perforated 'pivoted .shelves for allowing the bleaching fumes and hot air to ass thereand other novel features o construction which will be described in the specification,

Specication of Letters Patent.

Application filed May 20, 1908. Serial No. 433,842.

Patented March 16, 1909.

elucidated in the drawings and l clearl pointed out in the claims.

The devices or apparatus in present use for treating various grains may have met the requirements sought in a certain degree, but not in a manner to warrant 'a commercial commodity of excellence and purity such as is produced through the instrumentalities of this method of treating grain.

The object of the present invention is to' produce adrying, cooling and bleaching device all in. one machine, and which will be economical in construction and in the method of roducing the desired results in a quick an( expeditlous manner- In the drawings similar characters of refer# ence indicate corresponding parts in all the iigures.

Figure l is a side elevation of the improved device, with the house in section, exhibiting the interior thereof. Fig. 2 is a side elevation in detail of the central portion of the. tower, exhibiting independent rods for operating the shelf levers. Fig. 3 is a central longitudinal section of the apparatus, eX-

exhibiting the opposite side thereof.

This invention consists of a number-of very important devices, the functions or chief characteristics of which are, a tower A, a chemicalfurnace B, a heating compart- -ment C, and a fan or blower D, in comunetion with a cold air-pig? or conduit E, a hot air pi e or conduit and the bleacher hibitingthe various instrumentalities asso` Fig. 8 is a fragmentary section view of Fig. 7, y

so i

piple I A 0 he tower A, 1s located ad1acent to a gram elevator,f not shown` in Athe drawings, and from which extends a ipe. o r chute A', which conveys the grain t rough gravity into the. uplper compartment A2, of Athe said tower 4Said tower A, is divided or bisected by a slide A, thus forming two' compartments A2, and A?, respectively. This division of" said tower is for the purpose of through the medium of the serration a, and a',

lmpmging on each other` when desiring to regulate the How of grain into the lower comartment A3. Adjacent to the slide A, are eflectors b, b, to centrallylocate the grain as 1 5 it passes into the lower compartment A3, and at the same time to allow the grain to pass slowly over the pivoted shelves c. Said shelves c are provlded with peiforations c', to allow the various products to pass through when d 'ng and cooling the grain, and also during t e process of bleaching. 4

levers and operated by means of rods e, ivoted to the ends of said levers d. At ythe owermost part of said rods e, are pivoted levers f for regulating the pivoted shelves c, through the medium of frames g, which are provided with notches h, securing said levers j, when adjusting the perforated shelves c. In Figs. 1, 3 and 4.0i the drawings, the levers d, are .all pivoted to continuous rods e, whereb the levers d, on oppositesides of the tower are operated by a single rod e, on said sides. It may occur at timesv when A treating grains, that it will bc required to operate the lever d, attached to compartments A, and A3, separately. To meet such an emergency, se arate rods e', are provided to operate the -s elves in compartment A3, 40 indeplendent of those in compartment A", whic is fully illustrated in Fig. 2 of the accom anying drawings. A

' en treating grain the amount or rate of flow of the grain from the elevator is regulated by means of a dam eror door I, adjacent t the pipe or chute Said damper-is operated by a lever J through the medium of .a rod K, which is provided with notches 7c, near the lowermost part thereof, for enga ement with a bracket L. Near the top of t e tower A, is a platform M, which is available by means of a ladder O. On the top of the /said tower A, is a vent house N, which is rovided with openings n, to allow the co ed gases in the chamber A2, to escape when desired. At the lowermost portion of tower A, adjacent to the foundation Hg is a conveyer '1), for removing the treated grain to some suitable receptacle. Adjacent to said conveyer P, and within the tower A, is an inclined slide Q, for forcing the grain to slide into said conveyer through the aperture R, Y formed in said tower A. The aperture R, is also for the purpose of allowing the cold air 6 5 to be drawn into the compartment A3, by

" around said steam coil or radiator.

heated airis forced by the fan into the pipe v free end of pipe The ivoted shelves c, are provided withv emp oyed in pipe 15, to regulate the sulfur means of a fan D, through the mouth T. As. the cold air enters said chamber A", it is drawn'upward into the pipe' E, and thence downward into the chamber C, where it becomes heatedby means ofthe steam coil 9, 70 after which it enters the fan aforesaid passing out the mouth U, into the chamber 10, the air thus becoming heated in its passtlge F, and conveyed into the compartment upward and vented throu h the vent house N. A house 12, is provided to protect thevarious parts mentioned not otherwise protected from the elements. Adjacent to the house 12, is a chemical furnace B, for producing fumes, which may be sulfur or other products that will accomplish the required results. The fumes from said furnace are conveyed through pipes 15, and G, (over tbc (1 is a shield to preventl grain from entering said pi e) and .thence into the compartment A2, w en the bleaching rocess 1s required. A damper 15 is fumes when leaching. At the lowermost portion of ipe G, is a plug 17, for cleaning said i w en necessary. During the process o leaching, the heat from the chemical furnace is sufficient to carry the sulfur fumes to the tower..

In operating my improved apparatus the grain is conveyed to the tower A, through pipe A', and the'ow of grain is regulated by the damper I, by means uof a rod K, either from the bottom of the tower, or from the platform-M, which is reached by means of the ladder O.l When operated from the platform, the rod K, is detached and the level' J is hand operated. In regulating said damper I, it will be observed that the damper I, cannot be forced away'rom the mouth of the pipe A', lwhen operated by the rod K, as any undue pressure on said damper I, when an elevator is filled with grain, will be retarded 11 0 a's the notches 7c, on the rod K, press against the top of the catch or bracket L, and thus retain the damper in its proper position.

As the grain is conveyed mto the tower A, see Fig. 3, it will pass over or rebound slightly on the perforatedhelves c, while the sulfur fumes from the pipe 16, will enter the chamb er and pass around said shelves and also through the perforations c', thus becoming thorou hly mixed with the grain being treated. T e shelves being shown, in Fig. 3, at an angle of about 45 degrees will retard the sulfur fumes and allow the portions of the grain .to become thoroughly1 treated. At certain sta es in the process of heating the grain the 1?5 she ves c, are closed and form vertical walls as indicated injFig. 4. The hot air 'will'pass through the perfprations c', into the center of the tower between the two rows of closed shelves. To prevent the products?.i from escaping from .the ltower except throughlthe cated within both compartments of said perforations c, a partition WV, is put ontop of tower, said series of shelves being operated independently of each other, a hot air pipe one side ofthev tower as indicated in Figs-3 and 4 of the drawings.

The slide A", is closed or partljT closed at certainstages of the process of treating the grain.

l grain are vented through the top of the tower.

When the o eration of treating the grain begins, theco d air is drawn into the-coinpartment A3, through the aperture R, and down the pipe E, by means of afan or .blower D, where the cold air enters the chamber C, and in passing around and through the steam coil or radiator 9, it becomes heated, after which it is drawn into the opening T, and cxliausted into the chamber 10, through the opening U, and forced upward through the hot air pipe F, as aforesaid. As the grain is -treated when the slide A is not entirely closed, the grain passes into the chamber or compartment A3, commingling with the cold air as it is drawnupwardly toward the pipe E., thus cooling the grain before entering the conveyer P, by way of the slide Q, and outwardly into a receptacle. As grains vary,

thereby requiring different treatment, it is.

arranged so that the rods e, and e', will operate the shelves c, in such a manner as to 'make a continuous channel, as indicated in Fig. 4, of the accompanying drawings.

The grain can be treated whether descending quickly or slowly down `the tower, by the sul- When the erforated shelves c, are perpendicular or o liquely open they form two perforated walls, with grain between, with a closed hot air chamber at one side., and open exhaust chamber on the other side, as indicated in Figs. 1, 3 and 4,

In the modification indicated in Figs. 7, and 8, additional walls of shelves are shown. The sulfur or chemical pipe G, the hot air pipe F, and the cold air pipe E, all enter in the rear of the tower A, at a central oint between tlie walls of the perforated s elves'c.

The products fro'm the aforesaid pipes pass centrally through the tower A, and in the upward passage, said products are retarded by the partition or cover w, consequently the products emanating from' the various vpipes have to pass through the erforations c', formed in the the grain iassing between the walls of the shelves. 'l`he products finally escape through the exhaust passage adjacentthej walls of the tower A, and thence through the-vent N.

Within the vent houses are located hopper T, for feeding the grain in the tower.

Having described my invention, vthat which I desire to secure by Letters Patent ist' -1.. An apparatus for treating grains, consisting of a tower, said tower being provided with a slide centr/ally located, so as to form two compartments within -said tower, centrally pivoted shelves arranged in series lol perforated she ves c, through and a chemical pipe entering said tower, for

, the purpose as shown` and described.

The fumes after passing through the 2. An apparatus for treating grain, consistinr of a tower said tower beino bisected by an adjustable slide for forming two compartments within said tower, alternate opposing centrally pivoted shelves arranged within said tower, the means for adjusting said shelves, in combination with a hot air and a chemical pipe entering said tower as 'herein shown and described, and the means for forcing hot air into said tower as specified.

3. An` apparatus for treating grain, consisting of two compartments within a tower, opposing pivoted shelves arranged within said tower, a cold air ipe on the outside of said towerand extending upwardly and entering the wall of said tower, aV heating chamber communicating with lsaid cold air pipe in combination' with a fan for drawing air through the lower part of said tower thence into said heating 'chamber through said cold air pipe, a chemical pipe entering said tower y and the means for conveying hot air into the upper compartment of said tower, as shown and described.

4. An apparatus for treating grains, consisting of a tower, perforated shelves within said tower, centrally pivoted, aslide for di-` viding said tower into two compartments, vof a chemical furnace adapted to force fumes into the upper compartment of said tower, a hot air pipe entering said compartinent,and the .means for heating said air as specified.

- 5. An apparatus for treating grains, consisting of a tower, a feed pipe at the top of said tower,y andregulated by a damper, means connected to said damper for operat ing from the bottoni of the tower, pivoted,

ioc-

perforated shelves within said tower, means at the4 bottom of the tower for transferring the grain from said tower, as shown and described. j

.6. An apparatus for treating grains. con- .sisting of a .tower with an opening in the low'er portion thereof for the .admission of atmospheric air, said tower being divided into two compartments, `a shde centrally located within said tower, serrations on said slide `to hold itin any desired position, r pivoted shelves .within said tower, means forv adjusting said shelves from the outside of said tower, a steam coil adjacent to said tower, f

-a fan for drawing air through the opening in said tower .into said steam coil and forcing the air in a heated condition into the upper compartment of said tower, in combination with a chemical vfurnace forcing sulfur or. other fumes into said upper compartment as specified.

7. An apparatus for' treating grains, consisting of a tower, several series of alternate opposing centrally pivoted shelves located'y within said tower, a chemical pipe entering said tower, each series of said shelves being,

independently adjustable, a steam coil ad;

5 jacent to said tpwer, `and provided with a cold air pipe and a hot air p1 e the free ends of which enter said tower, o a fan for drawing cold air through said steam coil and forcing said air through said hoty air 'pipe into sald tower, a furnace for producing sulfur fumes, which' pass through said chemical pipe communicating' with said tower for treating thejgrain within, as specified.'

8. An apparatus for treating grains,'con

sisting of a tower, alternate o posing pivoted perforated shelves within said the outside of said tower, o erating levers connected to said pivoted er orated shelves,

of levers at the bottom'o said tower for op- 20 erating'said rods when adjusting said shelves,

means for regulating said levers at the bottom of said tower, as shown and described. 9. An apparatu's for treating grains, which consists o two compartments, one above the other, independently pivoted shelves in each apartment, and means for operating said pivoted shelves independently when treating grain, as shown and described.

1 0. An apparatus for treating' grain rovided with a lurality of walls forme by adjustable pe orated'shelves arranged in a nanner to .orm two passageways for mate.- rial being treated and to leave a central space therebetween and a cover closing the top of said central space, for the purpose asshown.

1 1. An apparatus for treating grain which is provided'with a tower, a lura 'ty of walls formed by perforated `she ves within said tower, said walls arran ed so as to form two` 40 passageways for material being'treated and to leave a central space therebetween, a cover closing the top of'said central'space, and a ht air pipe and a chemical pipe entering said central space, as shown and described. 12. .An apparatus for treating grain, consisting of a plurality of walls ormed by pivoted perforated shelves, said walls ar- "ranged so as to form a central passageway between said shelves, acover closing said y central passageway for retarding the. various gases ascending in -said central passageway,

tower, rods on Aan exhaust chamber and perforated shelves for alldwing 'said gases to escape through grain 'into said exhaust chamber, as specified.

l13. An apparatus for treating ain consisting of a tower, said tower bein divided into two compartments, an adjusta le'shde cenpassage of air. from the lower compartment Aof said tower into a heatingchamber and means for forcing heated air into said upper compartment of said tower in vcombmatlon lwith a chemicalv furnace as shown a'nd described. Y

14. An 'apparatus for treating gram consisting of a tower, a centrally located slide forming two compartments within said tower, rows of shelves within each compartment of said tower, said shelves being perforated, pivotedand arranged -in series and each series being independently adjustable, means for drawing atmos heric air into the lower compartment of sai tower, means for introducing a chemical fume into the upper com artment of 'said tower and means for forcing a hot air blast into the upper compartment of said tower.

15. An apparatus fer treating grain consisting of a tower, rows of centrally pivoted,

perforated shelves within s aid tower, said shelves being adjustable .s6 as to formopposing continuous walls between which a solid column of grain can pass, means for forcing chemical fumes, hot'. or cold air through the shelves Iand particles of grain passing between said shelves, an opening at the top of said tower for the escapement of fumes and air, a grain feed at the top of said tower and a means for conveying the treatedl grain from said tower.

In testimony whereof I ax my signature, in presence of two witnesses.

EDWARD PAXTON ARNOLD.

Witnesses: l

WILL. M. GAnsnEN,

Enw. W. LEEPER. 

